California · Government surplus
Contra Costa County, CA Government Auctions
Federal, state, and local agencies in and around Contra Costa County are auctioning 70 surplus lots right now worth $3,969,425 in current bids, and have sold 523 in the past year at a median of $11.
Live lots
70
Current bid value
$3,969,425
Sold (past year)
523
Median sale price
$11
Browse 70 live Contra Costa County auctions
Everything within 50 miles of Contra Costa County · 59 closing this week
What’s up for auction now
Live lots by category, with the median current bid for each.
Notable lots on the block
The highest lots open for bidding in Contra Costa County right now.
Who’s selling
The agencies and sellers behind Contra Costa County’s live lots.
By level: Government (44) · Federal (26)
Recently sold near Contra Costa County
523 lots sold in the past year for a combined $226,635.
Looking beyond Contra Costa County? See all government auctions in California.
Nearby counties
Method
Live counts reflect active lots whose location places them in Contra Costa County (by ZIP, or nearest county when a lot lists only a city); “sold” covers lots that closed with a bid in the past year, aggregated from official platforms (GovDeals, GSA Auctions, PublicSurplus, GovPlanet, PurpleWave and others). A sample of the platforms we index, not the entire government-auction universe. Medians are used because auction prices are heavily right-skewed.
Free to cite with attribution to GovAuctions. See also State of Government Surplus.
Cite this
Government agencies in Contra Costa County, California sold 523 surplus lots at auction since May 2026, at a median price of $11, according to GovAuctions.app data.
- Sample
- 523 lots
- As of
- 2026-10-12
- Licence
- CC BY 4.0
Method. Completed lots whose location places them in Contra Costa County (by ZIP, or nearest county when a lot lists only a city) that closed with a bid since May 2026, aggregated from the official platforms agencies sell on. Median final bid; prices exclude buyer's premium, taxes and fees.
Cite as. GovAuctions.app (2026). Government agencies in Contra Costa County, California sold 523 surplus lots at auction since May 2026, at a median price of $11, according to GovAuctions.app data. https://govauctions.app/research/what-your-county-is-selling/california/contra-costa-county
Free to use with attribution. The machine-readable version of this and every other number we publish, each with its sample size and method, is at /research/facts.json. Questions about the data are welcome via contact.